What is the formula for area of a rectangle?

Question

not in letters just like working it out

Answer 1

area = length of one side times one of its perpendicular sides

or

area = twice the area of a right triangle created by the rectangle's diagonal

= 2(bh/2) = bh, where b and h are the sides of a right triangle formed with hypotenuse = the rectangle's diagonal.

the area is in square units where the unit is the measurement of the rectangle's sides.